I recently found a mint condition Weaver Auto Twin Jack by a dumpster. I've done a basic search for them online and they look pretty darn handy but I can't find what one of them would go for. Short of loading it up and heading to "Pawn Stars" does anyone have an idea?

John is right,I have two also, and use them all the time. It's a bit of a workout on a model A , and do work much easier on a T. Great tire savers in winter, too. Mine are a matched pair, still with original green paint and decals. I think they were a Buy-it-now on eBay out of Vermont, around $400. Sold my two old greasy ones, and had some money left over.

I think of them as auto art you can use. They are often missing this little piece that keeps the handle upright. Both mine cAme with this casting that slides on the I-beam sides. Can't figure out what they are for, any ideas? I will check the other to see if the decal is better.

Sell it to Ron, that is an over market offer and the best place it can go. It won't go into some shed to rust away but will be made as new and used on T cars, not abused as a pallet jack or some other use that will damage it.